Abstract
Nitrogen-fixing bacteria Azotobacter produces exopolysachharides that can increase mobilization and solubility of toxic heavy metal Cadmium (Cd) in soil, and hence increase Cd uptake by plant roots. Plant synthesizes phytochelatin (PC) enzimatically from glutathion as a respond of Cd accumulation in plant tissue. This research conducted to investigate the effect of Azotobacter sp. LKM6 inoculation on Cd and PC concentration as well as phytochelatin syntase (PCS) activity on the shoot of lettuce ( Lactuca sativa L.). Lettuce transplants were grown in pot with and without Azotobacter inoculation for a month. Cadmium concentration in lettuce shoots was determined by Atomic Adsorption Spectrophotometer after nitric and perchloric acid digestion. Phytochelation concentration and PCS activity were determined using Reserve Phase High Performance Liquid Chromatography with fluorescence detector. The results showed that Azotobacter sp. LKM6 inoculation increase Cd and PC concentration as well as phytochelatin syntase (PCS) activity on the shoot of lettuce ( Lactuca sativa L.). It can be suggested that PC synthesis was induced by Azotobacter inoculation.
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Claims 3
Claim · model-written summary
Azotobacter inoculation increased cadmium concentration in lettuce shoots.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Azotobacter sp. LKM6 inoculatione0
- Interactor
- Azotobacter sp. LKM6e0symbiont
- Outcome
- Cde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azotobacter sp. LKM6 inoculation increase Cd and PC concentration as well as phytochelatin syntase (PCS) activity on the shoot of lettuce ( Lactuca sativa L.)”
Claim · model-written summary
Azotobacter inoculation increased phytochelatin concentration in lettuce shoots.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Azotobacter sp. LKM6 inoculatione0
- Interactor
- Azotobacter sp. LKM6e0symbiont
- Outcome
- PC concentratione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azotobacter sp. LKM6 inoculation increase Cd and PC concentration as well as phytochelatin syntase (PCS) activity on the shoot of lettuce ( Lactuca sativa L.)”
Claim · model-written summary
Azotobacter inoculation increased phytochelatin syntase activity in lettuce shoots.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Azotobacter sp. LKM6 inoculatione0
- Interactor
- Azotobacter sp. LKM6e0symbiont
- Gene
- phytochelatin syntase (PCS)e0
- Outcome
- phytochelatin syntase (PCS) activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azotobacter sp. LKM6 inoculation increase Cd and PC concentration as well as phytochelatin syntase (PCS) activity on the shoot of lettuce ( Lactuca sativa L.)”
The same questions in other papers
inoculation · molecular: metabolites · Lactuca sativa (garden lettuce)Positive and negative results
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See all 17 papers →inoculation · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results
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See all 26 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.